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发表于 26-9-2013 18:00:07|来自:新加坡
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http://cdn.ustraveldocs.com/sg/sg-niv-visawaiverinfo.asp
The Visa Waiver Program (VWP) enables nationals of certain countries to travel to the United States for tourism or business (visitor visa purposes) for stays of 90 days or less without obtaining a visa. Not all countries participate in the VWP, and not all travelers from VWP countries are eligible to use the program. VWP travelers are required to apply for authorization though the Electronic System for Travel Authorization (ESTA), are screened at their port of entry into the United States, and are enrolled in the Department of Homeland Security’s US-VISIT program.
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